Fix integer issues leading to out of bounds access in fx_ge_text.cpp.

core/fxge/ge/fx_ge_text_embeddertest.cpp

Index: core/fxge/ge/fx_ge_text_embeddertest.cpp
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp b/core/fxge/ge/fx_ge_text_embeddertest.cpp
similarity index 51%
copy from core/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp
copy to core/fxge/ge/fx_ge_text_embeddertest.cpp
index 176c923372eeb344c58d83a792cf5f2aa36b5f39..045b6dc8690cbcfe36c0a4d98b9259a2d96c0113 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp
+++ b/core/fxge/ge/fx_ge_text_embeddertest.cpp
@@ -1,16 +1,17 @@
-// Copyright 2015 PDFium Authors. All rights reserved.
+// Copyright 2016 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.
 
 #include "testing/embedder_test.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-class FPDFRenderPatternEmbeddertest : public EmbedderTest {};
+class FXGETextEmbedderTest : public EmbedderTest {};
 
-TEST_F(FPDFRenderPatternEmbeddertest, LoadError_547706) {
-  // Test shading where object is a dictionary instead of a stream.
-  EXPECT_TRUE(OpenDocument("bug_547706.pdf"));
+TEST_F(FXGETextEmbedderTest, BadItalic) {
+  // Shouldn't crash.
+  EXPECT_TRUE(OpenDocument("bug_601362.pdf"));
   FPDF_PAGE page = LoadPage(0);
+  EXPECT_NE(nullptr, page);
   FPDF_BITMAP bitmap = RenderPage(page);
   FPDFBitmap_Destroy(bitmap);
   UnloadPage(page);