Implement the getRequestDetails api in chrome side.

skia/ext/SkTraceMemoryDump_chrome.h

Index: skia/ext/SkTraceMemoryDump_chrome.h
diff --git a/skia/ext/SkTraceMemoryDump_chrome.h b/skia/ext/SkTraceMemoryDump_chrome.h
index 749d99d54677aa6ddbd40dddf1b82e26eaeee53d..aa4bf5122d3d1901b7b74588d20476b73dd5ec15 100644
--- a/skia/ext/SkTraceMemoryDump_chrome.h
+++ b/skia/ext/SkTraceMemoryDump_chrome.h
@@ -8,12 +8,12 @@
 #include <string>
 
 #include "base/macros.h"
+#include "base/trace_event/memory_dump_provider.h"
 #include "third_party/skia/include/core/SkTraceMemoryDump.h"
 
 namespace base {
 namespace trace_event {
 class MemoryAllocatorDump;
-class ProcessMemoryDump;
 }
 }
 
@@ -26,10 +26,12 @@ class SkTraceMemoryDump_Chrome : public SkTraceMemoryDump {
   // |dump_name_prefix| argument specifies the prefix appended to the dump
   // name skia provides. By default it is taken as empty string.
   SkTraceMemoryDump_Chrome(
+      const base::trace_event::MemoryDumpArgs& args,

[Primiano Tucci (use gerrit), 2015/09/09 17:27:23]

why don't you pass just the "LevelOfDetail" enum here. It would be clearer

       base::trace_event::ProcessMemoryDump* process_memory_dump);
 
   SkTraceMemoryDump_Chrome(
       const char* dump_name_prefix,
+      const base::trace_event::MemoryDumpArgs& args,
       base::trace_event::ProcessMemoryDump* process_memory_dump);
 
   ~SkTraceMemoryDump_Chrome() override;
@@ -45,6 +47,7 @@ class SkTraceMemoryDump_Chrome : public SkTraceMemoryDump {
   void setDiscardableMemoryBacking(
       const char* dumpName,
       const SkDiscardableMemory& discardableMemoryObject) override;
+  bool isLightDump() const override;
 
  protected:
   base::trace_event::ProcessMemoryDump* process_memory_dump() {
@@ -55,6 +58,7 @@ class SkTraceMemoryDump_Chrome : public SkTraceMemoryDump {
   std::string dump_name_prefix_;
 
   base::trace_event::ProcessMemoryDump* process_memory_dump_;
+  bool is_light_dump_;
 
   // Helper to create allocator dumps.
   base::trace_event::MemoryAllocatorDump* GetOrCreateAllocatorDump(