Drop dependency on Isolate* from platform.h

src/platform.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This module contains the platform-specific code. This make the rest of the
 // code less dependent on operating system, compilers and runtime libraries.
 // This module does specifically not deal with differences between different
 // processor architecture.
 // The platform classes have the same definition for all platforms. The
 // implementation for a particular platform is put in platform_<os>.cc.
 // The build system then uses the implementation for the target platform.
 //
 // This design has been chosen because it is simple and fast. Alternatively,
 // the platform dependent classes could have been implemented using abstract
 // superclasses with virtual methods and having specializations for each
 // platform. This design was rejected because it was more complicated and
 // slower. It would require factory methods for selecting the right
 // implementation and the overhead of virtual methods for performance
 // sensitive like mutex locking/unlocking.
 
 #ifndef V8_PLATFORM_H_
 #define V8_PLATFORM_H_
 
 #include <stdarg.h>
+#include <string>
+#include <vector>
 
 #include "src/base/build_config.h"
 #include "src/platform/mutex.h"
 #include "src/platform/semaphore.h"
 #include "src/vector.h"
 
 #ifdef __sun
 # ifndef signbit
 namespace std {
 int signbit(double x);
@@ skipping 213 matching lines @@
   static int SNPrintF(Vector<char> str, const char* format, ...);
   static int VSNPrintF(Vector<char> str,
                        const char* format,
                        va_list args);
 
   static char* StrChr(char* str, int c);
   static void StrNCpy(Vector<char> dest, const char* src, size_t n);
 
   // Support for the profiler.  Can do nothing, in which case ticks
   // occuring in shared libraries will not be properly accounted for.
-  static void LogSharedLibraryAddresses(Isolate* isolate);
+  struct SharedLibraryAddress {
+    SharedLibraryAddress(
+        const std::string& library_path, uintptr_t start, uintptr_t end)
+        : library_path(library_path), start(start), end(end) {}
+
+    std::string library_path;
+    uintptr_t start;
+    uintptr_t end;
+  };
+
+  static std::vector<SharedLibraryAddress> GetSharedLibraryAddresses();
 
   // Support for the profiler.  Notifies the external profiling
   // process that a code moving garbage collection starts.  Can do
   // nothing, in which case the code objects must not move (e.g., by
   // using --never-compact) if accurate profiling is desired.
   static void SignalCodeMovingGC();
 
   // Returns the number of processors online.
   static int NumberOfProcessorsOnline();
 
@@ skipping 227 matching lines @@
   char name_[kMaxThreadNameLength];
   int stack_size_;
   Semaphore* start_semaphore_;
 
   DISALLOW_COPY_AND_ASSIGN(Thread);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_PLATFORM_H_