Fix size_t to int/int32_t conversion warnings.

BUG=None

Review URL: https://codereview.chromium.org/1187163002

Cr-Commit-Position: refs/heads/master@{#334638}


CrOS-Libchrome-Original-Commit: e5e9a869ac6cfedbcc20bd0feb1b4deef4acca48
diff --git a/mojo/gles2/command_buffer_client_impl.cc b/mojo/gles2/command_buffer_client_impl.cc
index 31baac4..446cd9f 100644
--- a/mojo/gles2/command_buffer_client_impl.cc
+++ b/mojo/gles2/command_buffer_client_impl.cc
@@ -252,8 +252,8 @@
   int32 new_id = ++next_image_id_;
 
   mojo::SizePtr size = mojo::Size::New();
-  size->width = width;
-  size->height = height;
+  size->width = static_cast<int32_t>(width);
+  size->height = static_cast<int32_t>(height);
 
   MojoGpuMemoryBufferImpl* gpu_memory_buffer =
       MojoGpuMemoryBufferImpl::FromClientBuffer(buffer);
@@ -310,7 +310,7 @@
     unsigned internalformat,
     unsigned usage) {
   scoped_ptr<gfx::GpuMemoryBuffer> buffer(MojoGpuMemoryBufferImpl::Create(
-      gfx::Size(width, height),
+      gfx::Size(static_cast<int>(width), static_cast<int>(height)),
       gpu::ImageFactory::ImageFormatToGpuMemoryBufferFormat(internalformat),
       gpu::ImageFactory::ImageUsageToGpuMemoryBufferUsage(usage)));
   if (!buffer)