Move content's a plugin, ppapi_plugin, utility, and worker subdirectories to the content namespace.

content/ppapi_plugin/ppapi_webkitplatformsupport_impl.cc

Index: content/ppapi_plugin/ppapi_webkitplatformsupport_impl.cc
===================================================================
--- content/ppapi_plugin/ppapi_webkitplatformsupport_impl.cc	(revision 163080)
+++ content/ppapi_plugin/ppapi_webkitplatformsupport_impl.cc	(working copy)
@@ -34,6 +34,8 @@
 
 typedef struct CGFont* CGFontRef;
 
+namespace content {
+
 class PpapiWebKitPlatformSupportImpl::SandboxSupport : public WebSandboxSupport {
  public:
   virtual ~SandboxSupport() {}
@@ -122,7 +124,7 @@
     return;
   }
 
-  content::GetFontFamilyForCharacters(
+  GetFontFamilyForCharacters(
       characters,
       num_characters,
       preferred_locale,
@@ -132,7 +134,7 @@
 
 void PpapiWebKitPlatformSupportImpl::SandboxSupport::getRenderStyleForStrike(
     const char* family, int sizeAndStyle, WebKit::WebFontRenderStyle* out) {
-  content::GetRenderStyleForStrike(family, sizeAndStyle, out);
+  GetRenderStyleForStrike(family, sizeAndStyle, out);
 }
 
 #endif
@@ -259,3 +261,5 @@
   NOTREACHED();
   return 0;
 }
+
+}  // namespace content