Revert "Add a build target and a proper export header for shared library builds."

This reverts commit 00334675c18a0203f313cceb670c970a77280f49.

Reason for revert: Breaking the deps roller - https://chromium-review.googlesource.com/c/609307

Original change's description:
> Add a build target and a proper export header for shared library builds.
> 
> This CL adds support for Chromium's component build feature to pdfium.
> 
> The export header stub in fpdfview.h is expanded to match Chromium's
> export mechanisms and patterns (fixes pdfium:825).
> 
> A component/shared library build can be triggered by adding
> 
> is_component_build = true
> 
> as a gn argument. Please note that setting this will also affect some
> of pdfiums dependencies like v8, which will be build as components
> too.
> 
> Additionally, this CL provides a "pdf_source_set" template which
> dynamically enables the use of "source_set" when building a complete
> static library or a shared library to reduce build time.
> 
> When testing this it is recommended to only build the pdfium target as
> most of pdfiums test rely on non-public functions which aren't exported
> by the shared library.
> 
> Bug: pdfium:825,pdfium:826
> Change-Id: Icedc538ec535e11d1e53c4d5fabc8c064b275752
> Reviewed-on: https://pdfium-review.googlesource.com/8970
> Reviewed-by: dsinclair <dsinclair@chromium.org>
> Commit-Queue: dsinclair <dsinclair@chromium.org>

TBR=thestig@chromium.org,tsepez@chromium.org,brucedawson@chromium.org,dsinclair@google.com,dsinclair@chromium.org,licorn@gmail.com

Change-Id: Ib02af2298932481293f50d362ae87bfedf284821
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: pdfium:825, pdfium:826
Reviewed-on: https://pdfium-review.googlesource.com/10550
Reviewed-by: Henrique Nakashima <hnakashima@chromium.org>
Commit-Queue: Henrique Nakashima <hnakashima@chromium.org>

1 files changed, 31 insertions, 32 deletions

diff --git a/fpdfsdk/fpdf_transformpage.cpp b/fpdfsdk/fpdf_transformpage.cpp
index 93df594618..b419ad1fb2 100644
--- a/fpdfsdk/fpdf_transformpage.cpp
+++ b/fpdfsdk/fpdf_transformpage.cpp
@@ -56,11 +56,11 @@ bool GetBoundingBox(CPDF_Page* page,
 
 }  // namespace
 
-FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetMediaBox(FPDF_PAGE page,
-                                                    float left,
-                                                    float bottom,
-                                                    float right,
-                                                    float top) {
+DLLEXPORT void STDCALL FPDFPage_SetMediaBox(FPDF_PAGE page,
+                                            float left,
+                                            float bottom,
+                                            float right,
+                                            float top) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   if (!pPage)
     return;
@@ -68,11 +68,11 @@ FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetMediaBox(FPDF_PAGE page,
   SetBoundingBox(pPage, "MediaBox", left, bottom, right, top);
 }
 
-FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetCropBox(FPDF_PAGE page,
-                                                   float left,
-                                                   float bottom,
-                                                   float right,
-                                                   float top) {
+DLLEXPORT void STDCALL FPDFPage_SetCropBox(FPDF_PAGE page,
+                                           float left,
+                                           float bottom,
+                                           float right,
+                                           float top) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   if (!pPage)
     return;
@@ -80,28 +80,27 @@ FPDF_EXPORT void FPDF_CALLCONV FPDFPage_SetCropBox(FPDF_PAGE page,
   SetBoundingBox(pPage, "CropBox", left, bottom, right, top);
 }
 
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetMediaBox(FPDF_PAGE page,
-                                                         float* left,
-                                                         float* bottom,
-                                                         float* right,
-                                                         float* top) {
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetMediaBox(FPDF_PAGE page,
+                                                 float* left,
+                                                 float* bottom,
+                                                 float* right,
+                                                 float* top) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   return pPage && GetBoundingBox(pPage, "MediaBox", left, bottom, right, top);
 }
 
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV FPDFPage_GetCropBox(FPDF_PAGE page,
-                                                        float* left,
-                                                        float* bottom,
-                                                        float* right,
-                                                        float* top) {
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_GetCropBox(FPDF_PAGE page,
+                                                float* left,
+                                                float* bottom,
+                                                float* right,
+                                                float* top) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   return pPage && GetBoundingBox(pPage, "CropBox", left, bottom, right, top);
 }
 
-FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
-FPDFPage_TransFormWithClip(FPDF_PAGE page,
-                           FS_MATRIX* matrix,
-                           FS_RECTF* clipRect) {
+DLLEXPORT FPDF_BOOL STDCALL FPDFPage_TransFormWithClip(FPDF_PAGE page,
+                                                       FS_MATRIX* matrix,
+                                                       FS_RECTF* clipRect) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   if (!pPage)
     return false;
@@ -198,7 +197,7 @@ FPDFPage_TransFormWithClip(FPDF_PAGE page,
   return true;
 }
 
-FPDF_EXPORT void FPDF_CALLCONV
+DLLEXPORT void STDCALL
 FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,
                               double a,
                               double b,
@@ -218,10 +217,10 @@ FPDFPageObj_TransformClipPath(FPDF_PAGEOBJECT page_object,
   pPageObj->TransformGeneralState(matrix);
 }
 
-FPDF_EXPORT FPDF_CLIPPATH FPDF_CALLCONV FPDF_CreateClipPath(float left,
-                                                            float bottom,
-                                                            float right,
-                                                            float top) {
+DLLEXPORT FPDF_CLIPPATH STDCALL FPDF_CreateClipPath(float left,
+                                                    float bottom,
+                                                    float right,
+                                                    float top) {
   CPDF_Path Path;
   Path.AppendRect(left, bottom, right, top);
 
@@ -230,7 +229,7 @@ FPDF_EXPORT FPDF_CLIPPATH FPDF_CALLCONV FPDF_CreateClipPath(float left,
   return pNewClipPath.release();  // Caller takes ownership.
 }
 
-FPDF_EXPORT void FPDF_CALLCONV FPDF_DestroyClipPath(FPDF_CLIPPATH clipPath) {
+DLLEXPORT void STDCALL FPDF_DestroyClipPath(FPDF_CLIPPATH clipPath) {
   // Take ownership back from caller and destroy.
   std::unique_ptr<CPDF_ClipPath>(static_cast<CPDF_ClipPath*>(clipPath));
 }
@@ -272,8 +271,8 @@ void OutputPath(std::ostringstream& buf, CPDF_Path path) {
   }
 }
 
-FPDF_EXPORT void FPDF_CALLCONV FPDFPage_InsertClipPath(FPDF_PAGE page,
-                                                       FPDF_CLIPPATH clipPath) {
+DLLEXPORT void STDCALL FPDFPage_InsertClipPath(FPDF_PAGE page,
+                                               FPDF_CLIPPATH clipPath) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   if (!pPage)
     return;