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

core/fxge/ge/fx_ge_text_embeddertest.cpp

-// 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);
 }