Move a bunch of code in content\common (as well as a few left in renderer) to the content namespace.

content/common/gpu/gpu_memory_manager.cc

Index: content/common/gpu/gpu_memory_manager.cc
===================================================================
--- content/common/gpu/gpu_memory_manager.cc	(revision 163290)
+++ content/common/gpu/gpu_memory_manager.cc	(working copy)
@@ -19,6 +19,7 @@
 #include "content/common/gpu/gpu_memory_tracking.h"
 #include "gpu/command_buffer/service/gpu_switches.h"
 
+namespace content {
 namespace {
 
 const int kDelayedScheduleManageTimeoutMs = 67;
@@ -203,7 +204,7 @@
 }
 
 void GpuMemoryManager::GetVideoMemoryUsageStats(
-    content::GPUVideoMemoryUsageStats& video_memory_usage_stats) const {
+    GPUVideoMemoryUsageStats& video_memory_usage_stats) const {
   // For each context group, assign its memory usage to its PID
   video_memory_usage_stats.process_map.clear();
   for (std::set<GpuMemoryTrackingGroup*>::const_iterator i =
@@ -406,4 +407,6 @@
       false);
 }
 
+}  // namespace content
+
 #endif