This CL adds client.toDataURL which gets the contents...

core/cross/image_utils_test.cc

 /*
  * Copyright 2009, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 25 matching lines @@
 #include "base/file_path.h"
 #include "utils/cross/file_path_utils.h"
 
 namespace o3d {
 
 class ImageTest : public testing::Test {
 };
 
 TEST_F(ImageTest, CheckImageDimensions) {
   EXPECT_TRUE(image::CheckImageDimensions(1u, 1u));
-  EXPECT_FALSE(image::CheckImageDimensions(0u, 1u));
-  EXPECT_FALSE(image::CheckImageDimensions(1u, 0u));
   EXPECT_TRUE(image::CheckImageDimensions(image::kMaxImageDimension,
                                           image::kMaxImageDimension));
-  EXPECT_FALSE(image::CheckImageDimensions(0u, image::kMaxImageDimension));
-  EXPECT_FALSE(image::CheckImageDimensions(image::kMaxImageDimension, 0u));
+  EXPECT_FALSE(image::CheckImageDimensions(0u, image::kMaxImageDimension + 1));
+  EXPECT_FALSE(image::CheckImageDimensions(image::kMaxImageDimension + 1, 0u));
 }
 
 TEST_F(ImageTest, ComputeMipMapCount) {
   EXPECT_EQ(image::ComputeMipMapCount(1, 1), 1);
   EXPECT_EQ(image::ComputeMipMapCount(2, 2), 2);
   EXPECT_EQ(image::ComputeMipMapCount(2, 1), 2);
   EXPECT_EQ(image::ComputeMipMapCount(256, 1), 9);
   EXPECT_EQ(image::ComputeMipMapCount(256, 256), 9);
 }
 
@@ skipping 235 matching lines @@
 TEST_F(ImageTest, GetFileTypeFromMimeType) {
   EXPECT_EQ(image::PNG, image::GetFileTypeFromMimeType("image/png"));
   EXPECT_EQ(image::JPEG, image::GetFileTypeFromMimeType("image/jpeg"));
   EXPECT_EQ(image::UNKNOWN, image::GetFileTypeFromFilename("text/plain"));
   EXPECT_EQ(image::UNKNOWN,
             image::GetFileTypeFromFilename("application/x-123"));
 }
 
 }  // namespace