Move extern cmap declarations from .cpp files into new .h files.

That way, the compiler can check them against the definitions rather
than just relying on the linker to line things up.

Make the types of the declarations and definitions match exactly,
instead of being synonym typedefs of each other.

Fix some IWYU and use FX_ArraySize where possible.

BUG=https://code.google.com/p/pdfium/issues/detail?id=178
R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1221503005 .

23 files changed, 105 insertions, 45 deletions

diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/83pv-RKSJ-H_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/83pv-RKSJ-H_1.cpp
index 813cf782bc..605eec0eec 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/83pv-RKSJ-H_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/83pv-RKSJ-H_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_83pv_RKSJ_H_1[222 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_83pv_RKSJ_H_1[222 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0080, 0x0080, 0x0061, 0x00A0, 0x00DF, 0x0146,
     0x00FD, 0x00FD, 0x0098, 0x00FE, 0x00FE, 0x00E4, 0x00FF, 0x00FF, 0x007C,
     0x8140, 0x817E, 0x0279, 0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-H_2.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-H_2.cpp
index 8c215f8abc..22d02b94c5 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-H_2.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-H_2.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_90ms_RKSJ_H_2[171 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_90ms_RKSJ_H_2[171 * 3] = {
     0x0020, 0x007D, 0x00E7, 0x007E, 0x007E, 0x0277, 0x00A0, 0x00DF, 0x0146,
     0x8140, 0x817E, 0x0279, 0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5,
     0x81C8, 0x81CE, 0x02ED, 0x81DA, 0x81E8, 0x02F4, 0x81F0, 0x81F7, 0x0303,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-V_2.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-V_2.cpp
index d73c6eaafa..7710edb546 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-V_2.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/90ms-RKSJ-V_2.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_90ms_RKSJ_V_2[78 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_90ms_RKSJ_V_2[78 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x8150, 0x8151, 0x1ED1, 0x815B, 0x815D, 0x1ED3, 0x8160, 0x8164, 0x1ED6,
     0x8169, 0x817A, 0x1EDB, 0x8181, 0x8181, 0x1EED, 0x81A8, 0x81A8, 0x02E3,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-H_2.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-H_2.cpp
index 12720640dc..2099aefaf5 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-H_2.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-H_2.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_90msp_RKSJ_H_2[170 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_90msp_RKSJ_H_2[170 * 3] = {
     0x0020, 0x007E, 0x0001, 0x00A0, 0x00DF, 0x0146, 0x8140, 0x817E, 0x0279,
     0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5, 0x81C8, 0x81CE, 0x02ED,
     0x81DA, 0x81E8, 0x02F4, 0x81F0, 0x81F7, 0x0303, 0x81FC, 0x81FC, 0x030B,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-V_2.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-V_2.cpp
index 548fc310e8..fad0e01db4 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-V_2.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/90msp-RKSJ-V_2.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_90msp_RKSJ_V_2[78 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_90msp_RKSJ_V_2[78 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x8150, 0x8151, 0x1ED1, 0x815B, 0x815D, 0x1ED3, 0x8160, 0x8164, 0x1ED6,
     0x8169, 0x817A, 0x1EDB, 0x8181, 0x8181, 0x1EED, 0x81A8, 0x81A8, 0x02E3,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/90pv-RKSJ-H_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/90pv-RKSJ-H_1.cpp
index 59cf01c843..bd85e58874 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/90pv-RKSJ-H_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/90pv-RKSJ-H_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_90pv_RKSJ_H_1[263 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_90pv_RKSJ_H_1[263 * 3] = {
     0x0020, 0x007E, 0x0001, 0x0080, 0x0080, 0x0061, 0x00A0, 0x00DF, 0x0146,
     0x00FD, 0x00FD, 0x0098, 0x00FE, 0x00FE, 0x00E4, 0x00FF, 0x00FF, 0x007C,
     0x8140, 0x817E, 0x0279, 0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-H_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-H_1.cpp
index 185a36737d..39d326cfa2 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-H_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-H_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_Add_RKSJ_H_1[635 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_Add_RKSJ_H_1[635 * 3] = {
     0x0020, 0x007E, 0x00E7, 0x00A0, 0x00DF, 0x0146, 0x8140, 0x817E, 0x0279,
     0x8180, 0x81AC, 0x02B8, 0x81B8, 0x81BF, 0x02E5, 0x81C8, 0x81CE, 0x02ED,
     0x81DA, 0x81E8, 0x02F4, 0x81F0, 0x81F7, 0x0303, 0x81FC, 0x81FC, 0x030B,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-V_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-V_1.cpp
index 1377f950f1..ea97f38b57 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-V_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/Add-RKSJ-V_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_Add_RKSJ_V_1[57 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_Add_RKSJ_V_1[57 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x8150, 0x8151, 0x1ED1, 0x815B, 0x815D, 0x1ED3, 0x8160, 0x8164, 0x1ED6,
     0x8165, 0x8165, 0x205A, 0x8166, 0x8166, 0x2053, 0x8167, 0x8167, 0x2058,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp
index 78212b9d3c..94e2cd2665 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/Adobe-Japan1-UCS2_4.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_Japan1CID2Unicode_4[15444] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_Japan1CID2Unicode_4[15444] = {
     0xFFFD, 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026,
     0x0027, 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E,
     0x002F, 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-H_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-H_1.cpp
index de47bcdb27..f3b15d333b 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-H_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-H_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_EUC_H_1[120 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_EUC_H_1[120 * 3] = {
     0x0020, 0x007E, 0x00E7, 0x8EA0, 0x8EDF, 0x0146, 0xA1A1, 0xA1FE, 0x0279,
     0xA2A1, 0xA2AE, 0x02D7, 0xA2BA, 0xA2C1, 0x02E5, 0xA2CA, 0xA2D0, 0x02ED,
     0xA2DC, 0xA2EA, 0x02F4, 0xA2F2, 0xA2F9, 0x0303, 0xA2FE, 0xA2FE, 0x030B,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-V_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-V_1.cpp
index 9ff4036aeb..d4004cdad0 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-V_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/EUC-V_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_EUC_V_1[27 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_EUC_V_1[27 * 3] = {
     0xA1A2, 0xA1A3, 0x1ECF, 0xA1B1, 0xA1B2, 0x1ED1, 0xA1BC, 0xA1BE, 0x1ED3,
     0xA1C1, 0xA1C5, 0x1ED6, 0xA1CA, 0xA1DB, 0x1EDB, 0xA1E1, 0xA1E1, 0x1EED,
     0xA4A1, 0xA4A1, 0x1EEE, 0xA4A3, 0xA4A3, 0x1EEF, 0xA4A5, 0xA4A5, 0x1EF0,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-H_2.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-H_2.cpp
index 803787c764..850625328b 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-H_2.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-H_2.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_Ext_RKSJ_H_2[665 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_Ext_RKSJ_H_2[665 * 3] = {
     0x0020, 0x007E, 0x00E7, 0x00A0, 0x00DF, 0x0146, 0x8140, 0x817E, 0x0279,
     0x8180, 0x8188, 0x02B8, 0x8189, 0x8189, 0x1D36, 0x818A, 0x81AC, 0x02C2,
     0x824F, 0x8258, 0x030C, 0x8260, 0x8279, 0x0316, 0x8281, 0x829A, 0x0330,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-V_2.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-V_2.cpp
index fe41cf5daf..7de6f01190 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-V_2.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/Ext-RKSJ-V_2.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_Ext_RKSJ_V_2[39 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_Ext_RKSJ_V_2[39 * 3] = {
     0x8141, 0x8142, 0x1ECF, 0x8143, 0x8143, 0x204C, 0x8144, 0x8144, 0x2052,
     0x814A, 0x814A, 0x2050, 0x814B, 0x814B, 0x204F, 0x815B, 0x815D, 0x1ED3,
     0x8160, 0x8164, 0x1ED6, 0x8165, 0x8165, 0x2059, 0x8166, 0x8166, 0x2054,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/H_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/H_1.cpp
index cd672ee1d0..ed6cb81502 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/H_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/H_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_H_1[118 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_H_1[118 * 3] = {
     0x2121, 0x217E, 0x0279, 0x2221, 0x222E, 0x02D7, 0x223A, 0x2241, 0x02E5,
     0x224A, 0x2250, 0x02ED, 0x225C, 0x226A, 0x02F4, 0x2272, 0x2279, 0x0303,
     0x227E, 0x227E, 0x030B, 0x2330, 0x2339, 0x030C, 0x2341, 0x235A, 0x0316,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp
index b9d6a45982..b8f842d3ea 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-H_4.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_UniJIS_UCS2_HW_H_4[4 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_UniJIS_UCS2_HW_H_4[4 * 3] = {
     0x0020, 0x005B, 0x00E7, 0x005C, 0x005C, 0x220F, 0x005D, 0x007E, 0x0124,
     0x00A5, 0x00A5, 0x0123,
 };
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp
index dadb4a8598..997ce05d5c 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-HW-V_4.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_UniJIS_UCS2_HW_V_4[199 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_UniJIS_UCS2_HW_V_4[199 * 3] = {
     0x0020, 0x005B, 0x00E7, 0x005C, 0x005C, 0x220F, 0x005D, 0x007E, 0x0124,
     0x00A5, 0x00A5, 0x0123, 0x00B0, 0x00B0, 0x204D, 0x2010, 0x2010, 0x1ED5,
     0x2015, 0x2015, 0x1ED4, 0x2016, 0x2016, 0x1ED7, 0x2018, 0x2019, 0x2059,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-H_4.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-H_4.cpp
index 74dd4af5d5..4d57ecb7db 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-H_4.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-H_4.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_UniJIS_UCS2_H_4[9772 * 2] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_UniJIS_UCS2_H_4[9772 * 2] = {
     0x0020, 0x0001, 0x0021, 0x0002, 0x0022, 0x0003, 0x0023, 0x0004,
     0x0024, 0x0005, 0x0025, 0x0006, 0x0026, 0x0007, 0x0027, 0x0008,
     0x0028, 0x0009, 0x0029, 0x000A, 0x002A, 0x000B, 0x002B, 0x000C,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-V_4.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-V_4.cpp
index 7097dc2884..492d2bc61a 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-V_4.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UCS2-V_4.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_UniJIS_UCS2_V_4[251 * 2] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_UniJIS_UCS2_V_4[251 * 2] = {
     0x00B0, 0x204D, 0x2010, 0x1ED5, 0x2015, 0x1ED4, 0x2016, 0x1ED7,
     0x2018, 0x2059, 0x2019, 0x205A, 0x201C, 0x2057, 0x201D, 0x2058,
     0x2025, 0x1EDA, 0x2026, 0x1ED9, 0x2032, 0x2051, 0x2033, 0x205B,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-H_5.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-H_5.cpp
index 67044b7311..33842e373a 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-H_5.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-H_5.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_UniJIS_UTF16_H_5[13241 * 2] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_UniJIS_UTF16_H_5[13241 * 2] = {
     0x0020, 0x0001, 0x0021, 0x0002, 0x0022, 0x0003, 0x0023, 0x0004,
     0x0024, 0x0005, 0x0025, 0x0006, 0x0026, 0x0007, 0x0027, 0x0008,
     0x0028, 0x0009, 0x0029, 0x000A, 0x002A, 0x000B, 0x002B, 0x000C,
@@ -3317,7 +3319,8 @@ extern const unsigned short g_FXCMAP_UniJIS_UTF16_H_5[13241 * 2] = {
     0xFFE2, 0x02EF, 0xFFE3, 0x0289, 0xFFE4, 0x1F45, 0xFFE5, 0x02C7,
     0xFFE8, 0x0143,
 };
-extern const unsigned short g_FXCMAP_UniJIS_UTF16_H_5_DWord[384 * 3] = {
+
+const FX_WORD g_FXCMAP_UniJIS_UTF16_H_5_DWord[384 * 3] = {
     0xD840, 0xDC0B, 0x360F, 0xD840, 0xDC89, 0x4351, 0xD840, 0xDC8A, 0x371C,
     0xD840, 0xDCA2, 0x4358, 0xD840, 0xDCA4, 0x435B, 0xD840, 0xDCB0, 0x3781,
     0xD840, 0xDCF5, 0x4E59, 0xD840, 0xDD58, 0x4E6B, 0xD840, 0xDDA2, 0x3621,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-V_5.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-V_5.cpp
index 54bc72ae33..9cd9ce1c73 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-V_5.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/UniJIS-UTF16-V_5.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_UniJIS_UTF16_V_5[289 * 2] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_UniJIS_UTF16_V_5[289 * 2] = {
     0x00B0, 0x204D, 0x2010, 0x1ED5, 0x2015, 0x1ED4, 0x2016, 0x1ED7,
     0x2025, 0x1EDA, 0x2026, 0x1ED9, 0x2032, 0x2051, 0x2033, 0x205B,
     0x2190, 0x02E2, 0x2191, 0x02E0, 0x2192, 0x02E3, 0x2193, 0x02E1,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/V_1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/V_1.cpp
index 4aeae412e2..0bee140882 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/V_1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/V_1.cpp
@@ -4,7 +4,9 @@
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
-extern const unsigned short g_FXCMAP_V_1[27 * 3] = {
+#include "cmaps_japan1.h"
+
+const FX_WORD g_FXCMAP_V_1[27 * 3] = {
     0x2122, 0x2123, 0x1ECF, 0x2131, 0x2132, 0x1ED1, 0x213C, 0x213E, 0x1ED3,
     0x2141, 0x2145, 0x1ED6, 0x214A, 0x215B, 0x1EDB, 0x2161, 0x2161, 0x1EED,
     0x2421, 0x2421, 0x1EEE, 0x2423, 0x2423, 0x1EEF, 0x2425, 0x2425, 0x1EF0,
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.cpp b/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.cpp
index 4402de7e06..e5002d6445 100644
--- a/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.cpp
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.cpp
@@ -6,30 +6,11 @@
 
 #include "../../../../include/fpdfapi/fpdf_resource.h"
 #include "../../../../include/fpdfapi/fpdf_module.h"
+#include "../../../../include/fxcrt/fx_basic.h"  // For FX_ArraySize().
 #include "../../fpdf_font/font_int.h"
 #include "../cmap_int.h"
-extern const FX_WORD g_FXCMAP_83pv_RKSJ_H_1[];
-extern const FX_WORD g_FXCMAP_90ms_RKSJ_H_2[];
-extern const FX_WORD g_FXCMAP_90ms_RKSJ_V_2[];
-extern const FX_WORD g_FXCMAP_90msp_RKSJ_H_2[];
-extern const FX_WORD g_FXCMAP_90msp_RKSJ_V_2[];
-extern const FX_WORD g_FXCMAP_90pv_RKSJ_H_1[];
-extern const FX_WORD g_FXCMAP_Add_RKSJ_H_1[];
-extern const FX_WORD g_FXCMAP_Add_RKSJ_V_1[];
-extern const FX_WORD g_FXCMAP_EUC_H_1[];
-extern const FX_WORD g_FXCMAP_EUC_V_1[];
-extern const FX_WORD g_FXCMAP_Ext_RKSJ_H_2[];
-extern const FX_WORD g_FXCMAP_Ext_RKSJ_V_2[];
-extern const FX_WORD g_FXCMAP_H_1[];
-extern const FX_WORD g_FXCMAP_V_1[];
-extern const FX_WORD g_FXCMAP_UniJIS_UCS2_H_4[];
-extern const FX_WORD g_FXCMAP_UniJIS_UCS2_V_4[];
-extern const FX_WORD g_FXCMAP_UniJIS_UCS2_HW_H_4[];
-extern const FX_WORD g_FXCMAP_UniJIS_UCS2_HW_V_4[];
-extern const FX_WORD g_FXCMAP_UniJIS_UTF16_H_0[];
-extern const FX_WORD g_FXCMAP_UniJIS_UTF16_H_0_DWord[];
-extern const FX_WORD g_FXCMAP_UniJIS_UTF16_V_0[];
-extern const FX_WORD g_FXCMAP_Japan1CID2Unicode_4[];
+#include "cmaps_japan1.h"
+
 static const FXCMAP_CMap g_FXCMAP_Japan1_cmaps[] = {
     { "83pv-RKSJ-H", FXCMAP_CMap::Range, g_FXCMAP_83pv_RKSJ_H_1, 222, FXCMAP_CMap::None, NULL, 0, 0 },
     { "90ms-RKSJ-H", FXCMAP_CMap::Range, g_FXCMAP_90ms_RKSJ_H_2, 171, FXCMAP_CMap::None, NULL, 0, 0 },
@@ -52,11 +33,12 @@ static const FXCMAP_CMap g_FXCMAP_Japan1_cmaps[] = {
     { "UniJIS-UTF16-H", FXCMAP_CMap::Single, g_FXCMAP_UniJIS_UCS2_H_4, 9772, FXCMAP_CMap::None, NULL, 0, 0 },
     { "UniJIS-UTF16-V", FXCMAP_CMap::Single, g_FXCMAP_UniJIS_UCS2_V_4, 251, FXCMAP_CMap::None, NULL, 0, -1 },
 };
+
 void CPDF_ModuleMgr::LoadEmbeddedJapan1CMaps()
 {
     CPDF_FontGlobals* pFontGlobals = CPDF_ModuleMgr::Get()->GetPageModule()->GetFontGlobals();
     pFontGlobals->m_EmbeddedCharsets[CIDSET_JAPAN1].m_pMapList = g_FXCMAP_Japan1_cmaps;
-    pFontGlobals->m_EmbeddedCharsets[CIDSET_JAPAN1].m_Count = sizeof g_FXCMAP_Japan1_cmaps / sizeof (FXCMAP_CMap);
+    pFontGlobals->m_EmbeddedCharsets[CIDSET_JAPAN1].m_Count = FX_ArraySize(g_FXCMAP_Japan1_cmaps);
     pFontGlobals->m_EmbeddedToUnicodes[CIDSET_JAPAN1].m_pMap = g_FXCMAP_Japan1CID2Unicode_4;
     pFontGlobals->m_EmbeddedToUnicodes[CIDSET_JAPAN1].m_Count = 15444;
 }
diff --git a/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.h b/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.h
new file mode 100644
index 0000000000..f45f104edf
--- /dev/null
+++ b/core/src/fpdfapi/fpdf_cmaps/Japan1/cmaps_japan1.h
@@ -0,0 +1,35 @@
+// Copyright 2015 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#ifndef CORE_SRC_FPDFAPI_FPDF_CMAPS_JAPAN1_CMAPS_JAPAN1_H_
+#define CORE_SRC_FPDFAPI_FPDF_CMAPS_JAPAN1_CMAPS_JAPAN1_H_
+
+#include "../../../../include/fxcrt/fx_system.h"  // For FX_WORD.
+
+extern const FX_WORD g_FXCMAP_83pv_RKSJ_H_1[];
+extern const FX_WORD g_FXCMAP_90ms_RKSJ_H_2[];
+extern const FX_WORD g_FXCMAP_90ms_RKSJ_V_2[];
+extern const FX_WORD g_FXCMAP_90msp_RKSJ_H_2[];
+extern const FX_WORD g_FXCMAP_90msp_RKSJ_V_2[];
+extern const FX_WORD g_FXCMAP_90pv_RKSJ_H_1[];
+extern const FX_WORD g_FXCMAP_Add_RKSJ_H_1[];
+extern const FX_WORD g_FXCMAP_Add_RKSJ_V_1[];
+extern const FX_WORD g_FXCMAP_EUC_H_1[];
+extern const FX_WORD g_FXCMAP_EUC_V_1[];
+extern const FX_WORD g_FXCMAP_Ext_RKSJ_H_2[];
+extern const FX_WORD g_FXCMAP_Ext_RKSJ_V_2[];
+extern const FX_WORD g_FXCMAP_H_1[];
+extern const FX_WORD g_FXCMAP_V_1[];
+extern const FX_WORD g_FXCMAP_UniJIS_UCS2_H_4[];
+extern const FX_WORD g_FXCMAP_UniJIS_UCS2_V_4[];
+extern const FX_WORD g_FXCMAP_UniJIS_UCS2_HW_H_4[];
+extern const FX_WORD g_FXCMAP_UniJIS_UCS2_HW_V_4[];
+extern const FX_WORD g_FXCMAP_UniJIS_UTF16_H_0[];
+extern const FX_WORD g_FXCMAP_UniJIS_UTF16_H_0_DWord[];
+extern const FX_WORD g_FXCMAP_UniJIS_UTF16_V_0[];
+extern const FX_WORD g_FXCMAP_Japan1CID2Unicode_4[];
+
+#endif  // CORE_SRC_FPDFAPI_FPDF_CMAPS_JAPAN1_CMAPS_JAPAN1_H_