Revert "Add type cast definitions for CPDF_Dictionary."

This reverts commit 4816432671eef6467354aa252f22bb80acc315b7.

Reason, broke the javascript_test Rendering PDF file
/mnt/data/b/build/slave/linux/build/pdfium/out/Debug/gen/pdfium/testing/javascript/document_methods.pdf.
Non-linearized path...
FAILURE: document_methods.in; Command
'['/mnt/data/b/build/slave/linux/build/pdfium/out/Debug/pdfium_test',
'/mnt/data/b/build/slave/linux/build/pdfium/out/Debug/gen/pdfium/testing/javascript/document_methods.pdf']'
returned non-zero exit status -11

BUG=pdfium:201
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/1412413002 .

1 files changed, 31 insertions, 18 deletions

diff --git a/core/src/fpdfdoc/doc_utils.cpp b/core/src/fpdfdoc/doc_utils.cpp
index 7d3fdf2f23..1ed0017078 100644
--- a/core/src/fpdfdoc/doc_utils.cpp
+++ b/core/src/fpdfdoc/doc_utils.cpp
@@ -290,8 +290,9 @@ FX_DWORD CountInterFormFonts(CPDF_Dictionary* pFormDict) {
     if (pObj == NULL) {
       continue;
     }
-    if (CPDF_Dictionary* pDirect = ToDictionary(pObj->GetDirect())) {
-      if (pDirect->GetString("Type") == "Font") {
+    CPDF_Object* pDirect = pObj->GetDirect();
+    if (pDirect != NULL && pDirect->GetType() == PDFOBJ_DICTIONARY) {
+      if (((CPDF_Dictionary*)pDirect)->GetString("Type") == "Font") {
         dwCount++;
       }
     }
@@ -322,11 +323,14 @@ CPDF_Font* GetInterFormFont(CPDF_Dictionary* pFormDict,
     if (pObj == NULL) {
       continue;
     }
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
+    CPDF_Object* pDirect = pObj->GetDirect();
+    if (pDirect == NULL || pDirect->GetType() != PDFOBJ_DICTIONARY) {
       continue;
-    if (pElement->GetString("Type") != "Font")
+    }
+    CPDF_Dictionary* pElement = (CPDF_Dictionary*)pDirect;
+    if (pElement->GetString("Type") != "Font") {
       continue;
+    }
     if (dwCount == index) {
       csNameTag = csKey;
       return pDocument->LoadFont(pElement);
@@ -382,16 +386,18 @@ CPDF_Font* GetInterFormFont(CPDF_Dictionary* pFormDict,
     if (pObj == NULL) {
       continue;
     }
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
+    CPDF_Object* pDirect = pObj->GetDirect();
+    if (pDirect == NULL || pDirect->GetType() != PDFOBJ_DICTIONARY) {
       continue;
-    if (pElement->GetString("Type") != "Font")
+    }
+    CPDF_Dictionary* pElement = (CPDF_Dictionary*)pDirect;
+    if (pElement->GetString("Type") != "Font") {
       continue;
-
+    }
     CPDF_Font* pFind = pDocument->LoadFont(pElement);
-    if (!pFind)
+    if (pFind == NULL) {
       continue;
-
+    }
     CFX_ByteString csBaseFont;
     csBaseFont = pFind->GetBaseFont();
     csBaseFont.Remove(' ');
@@ -425,11 +431,14 @@ CPDF_Font* GetNativeInterFormFont(CPDF_Dictionary* pFormDict,
     if (pObj == NULL) {
       continue;
     }
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
+    CPDF_Object* pDirect = pObj->GetDirect();
+    if (pDirect == NULL || pDirect->GetType() != PDFOBJ_DICTIONARY) {
       continue;
-    if (pElement->GetString("Type") != "Font")
+    }
+    CPDF_Dictionary* pElement = (CPDF_Dictionary*)pDirect;
+    if (pElement->GetString("Type") != "Font") {
       continue;
+    }
     CPDF_Font* pFind = pDocument->LoadFont(pElement);
     if (pFind == NULL) {
       continue;
@@ -483,9 +492,11 @@ FX_BOOL FindInterFormFont(CPDF_Dictionary* pFormDict,
     if (pObj == NULL) {
       continue;
     }
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
+    CPDF_Object* pDirect = pObj->GetDirect();
+    if (pDirect == NULL || pDirect->GetType() != PDFOBJ_DICTIONARY) {
       continue;
+    }
+    CPDF_Dictionary* pElement = (CPDF_Dictionary*)pDirect;
     if (pElement->GetString("Type") != "Font") {
       continue;
     }
@@ -523,9 +534,11 @@ FX_BOOL FindInterFormFont(CPDF_Dictionary* pFormDict,
     if (pObj == NULL) {
       continue;
     }
-    CPDF_Dictionary* pElement = ToDictionary(pObj->GetDirect());
-    if (!pElement)
+    CPDF_Object* pDirect = pObj->GetDirect();
+    if (pDirect == NULL || pDirect->GetType() != PDFOBJ_DICTIONARY) {
       continue;
+    }
+    CPDF_Dictionary* pElement = (CPDF_Dictionary*)pDirect;
     if (pElement->GetString("Type") != "Font") {
       continue;
     }