Remove dependency on GURL from content/common/gpu

content/common/gpu/gpu_command_buffer_stub.h

Index: content/common/gpu/gpu_command_buffer_stub.h
diff --git a/content/common/gpu/gpu_command_buffer_stub.h b/content/common/gpu/gpu_command_buffer_stub.h
index 0a3fdbae26a7bc577c08a3498e6d3d29995a4093..0e5f6304ae6f07902695ec4e1dc5324ecb10cc30 100644
--- a/content/common/gpu/gpu_command_buffer_stub.h
+++ b/content/common/gpu/gpu_command_buffer_stub.h
@@ -34,7 +34,6 @@
 #include "ui/gfx/swap_result.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/gl/gpu_preference.h"
-#include "url/gurl.h"
 
 namespace gpu {
 struct Mailbox;
@@ -93,7 +92,7 @@ class GpuCommandBufferStub
       int32_t route_id,
       bool offscreen,
       GpuWatchdog* watchdog,
-      const GURL& active_url);
+      const std::string& active_url);
 
   ~GpuCommandBufferStub() override;
 
@@ -216,6 +215,10 @@ class GpuCommandBufferStub
   void OnParseError();
   void OnSchedulingChanged(bool scheduled);
 
+  // Shortcuts the expensive call to SetActiveURL when |url| is empty or
+  // |url_hash| matches the current active URL.
+  void FastSetActiveURL(const std::string& url, size_t url_hash);
+
   void ReportState();
 
   // Wrapper for GpuScheduler::PutChanged that sets the crash report URL.
@@ -285,7 +288,7 @@ class GpuCommandBufferStub
 
   LatencyInfoCallback latency_info_callback_;
 
-  GURL active_url_;
+  std::string active_url_;
   size_t active_url_hash_;
 
   scoped_ptr<WaitForCommandState> wait_for_token_;